Power shovel



FIG. 1 is a first perspective view of a power shovel showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is an enlarged perspective view of FIG. 1 thereof.

The portion shown by broken lines is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a power shovel, as shown and described. 